Please , please help.... He just sits there. He won't climb and when I put him in a basking place he falls off upside down and can't make himself right.

He became very skinny and the only way he will eat is by forcing his mouth open. He has put on some weight with that and doesn't seem stressed by me doing this. He just lays there in the same where ever I put him for the whole day.

When I hold him my in hand he doesn't take action to hold on.

Like he is waiting for his death.....

Please help with anything you might know.